This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond Medium Princess Flower Pendant Necklace. The necklace is crafted of 18 karat yellow and white gold and features a quatrefoil flower motif adorned with diamonds weighing approximately .16 total carat weight. The necklace also features a synthetic ruby on the chain tag. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.